WikiLinks are matched with page names in a case-insensitive manner, so you
don't need to worry about getting the case the same, and can capitalise
links at the start of a sentence, and so on.

It's also possible to write a WikiLink that uses something other than the page
name as the link text. For example [[foo_bar|SandBox]] links to the SandBox
page, but the link will appear like this: foo bar.

To link to an anchor inside a page, you can use something like
[[WikiLink#foo]] .

If the file linked to by a WikiLink looks like an image, it will
be displayed inline on the page.

You can also put an url in a WikiLink, to link to an external page.
Email addresses can also be used to generate a mailto link.